Which of the following is the best description of the assumptions associated with the independent samples t-test? (A) The dependent variable is normally distributed, the group variances are equal, and the scores on the dependent variable are unrelated. B) The only assumption is that the scores are normally distributed. C) The scores on the dependent variable are related (in pairs or over time) and the group variances are equal. (D) The scores on the dependent variable are unrelated and normally distributed